Ansible 1.8.2 Error whilst debugging variable.stdout - "A variable inserted a new parameter into the module args"

[Mike S]

Hi all,

I've detailed this issue here https://github.com/ansible/ansible/issues/10519

To summarise, this was my task,

- name: Build base image
  shell: docker build -t {{docker_image_namespace}}/trusty-base {{docker_yard_dir}}/base
  register: docker_build

- debug: msg="{{ docker_build.stdout }}"

and the failure,

TASK: [docker-base | debug msg="{{ docker_build.stdout }}"] *******
fatal: [10.22.22.22] => A variable inserted a new parameter into the module args. Be sure to quote variables if they contain equal signs (for example: "{{var}}").

FATAL: all hosts have already failed -- aborting

I've only been able to get this to work as - debug: var=docker_build.stdout, however, this does not print STDOUT, but rather shows the var contents, including '\n' chars in a really long string.

Any thoughts on how I can get this sorted?

Any suggestions on getting these images built as an async. job as well?

[Matt Martz]

I might recommend using 'var' instead of 'msg' in debug.  The problem is likely that the output contains quotes and is breaking the quoting.

Something like:

- debug: var=docker_build.stdout

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Matt Martz
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[Mike S]

I've resorted to using the docker tools, to get the image setup

- name: Build base image
  docker_image: path="{{docker_yard_dir}}/base" name="{{docker_image_namespace}}/trusty-base" state=present
  register: docker_build

[Mike S]

Hey Matt,

Thanks, yeah I tried this but as you guessed, the output is received as string, but I want that string to be echoed into my terminal's tty.

I've now switched to building the image using docker-py and Ansible's docker module,

- name: Build base image
  docker_image: path="{{docker_yard_dir}}/base" name="{{docker_image_namespace}}/trusty-base"state=present
  register: docker_build

Any advice on how I can get the stdout info here, would it still be a case of accessing `docker_build.stdout`?

Also, what about running this as an async job (which I did); is there away to get an async job to trigger (say via `notify`) a completion message?  I don't mind if it's via email or using one of the push services Ansible can hook into.

Thanks for your help!

Best, M.